Histogram
Create a histogram of the values of a SpatRaster. For large datasets a sample of maxcell is used.
## S4 method for signature 'SpatRaster' hist(x, layer, maxcell=1000000, plot=TRUE, main, ...)
x |
SpatRaster |
layer |
integer (or character) to indicate layer number (or name). Can be used to subset the layers to plot in a multilayer SpatRaster |
maxcell |
integer. To regularly sample very large objects |
plot |
logical. Plot the histogram or only return the histogram values |
main |
character. Main title(s) for the plot. Default is the value of |
... |
additional arguments. See |
This function is principally used for plotting a histogram, but it also returns an object of class "histogram" (invisibly if plot=TRUE).
r1 <- r2 <- rast(nrows=50, ncols=50) values(r1) <- runif(ncell(r1)) values(r2) <- runif(ncell(r1)) rs <- r1 + r2 rp <- r1 * r2 opar <- par(no.readonly =TRUE) par(mfrow=c(2,2)) plot(rs, main='sum') plot(rp, main='product') hist(rs) a <- hist(rp) a x <- c(rs, rp, sqrt(rs)) hist(x) par(opar)
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